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Finding the Fourth Proportional to 302,315.60, 453,473.74 and 77,677.90

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Solution

The fourth proportional to 302,315.60, 453,473.74 and 77,677.90 is: 116,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,315.60 : 453,473.74 = 77,677.90 : x
  2. Step 2: Convert to fraction form
    302,315.60/453,473.74 = 77,677.90/x
  3. Step 3: Cross multiply
    302,315.60x = 453,473.74 × 77,677.90
  4. Step 4: Simplify right side
    302,315.60x = 35,224,887,828.35
  5. Step 5: Solve for x
    x = 35,224,887,828.35/302,315.60
  6. Step 6: Final answer
    x = 116,516.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.